HemingWeigh Heavy-Duty Complete Upper Body Workout Bar - 3-In-1 - Pull-Up/Push-Up/Sit-Up Bar (Latest Model - Advanced Door Frame Protection) Perfect for pull-ups, chin-ups, push-ups, crunches, dips, and much more. Multiple grip positions: Medium, Narrow, and Wide. Innovative no-screws required design uses leverage to adhere to the doorway and frame. Heavy-duty construction: Made of high-grade steel. Portable and easy to use.